<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        span{
            background-color: rgb(48, 65, 86);
        }
    </style>
</head>

<body>
    <span>48 65 86</span>
    <script>
        let arr = [{ label: '男',value: 1 }, { label: '女',value: 0 }]
        function f(arr) {
            let obj = {}
            // 写代码，得到
            arr.forEach(item =>{
                obj[item.value] = item.label
            })
            return obj
        }
        let obj = f(arr);
        console.log(obj)
        // obj = {'1': '男'， '0': '女'}
    </script>
</body>

</html>